no offense, but you're not yet a household name like brad pitt. >> i just felt like it was needed, i had too many incidents and too many things, i like having those guys around. >> reporter: finally, it's go time. they arrive at a hollywood movie studio, thousands of partygoers and potential threats are everywhere. >> we're looking for bad guys, body language, facial expressions and people that maybe have a fixation with him that maybe want to approach him. >> reporter: personal protection is a huge business. demand is going up? >> yes, absolutely. >> reporter: why? >> i think we're in a dangerous time and i think that people are a bit more concerned about the security. >> reporter: that protection does not come cheap. >> could be from 250 to $1.5 million a year depending on the individual client. >> reporter: the danger is so real, the lapd created a unit to handle stalkers making threats against stars like britney spears, paula abdul and jennifer garner. moyer got his start working security at the playboy mansion. 12 years ago he founded the world protection group. >> looking for p